<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>009-svg-矩形.html</title>
	<style>
		{
			margin: 0;
			padding: 0;
		}
		svg{
			background-color: gray;
		}
	</style>
</head>
<body>
	<svg width="600" height="400">
		<rect x="100" y="100" width="400" height="200" fill="#ff0">
	</svg>
</body>
</html>